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(: Test: K-FunctionCallExpr-17                           :)
(: Written by: Frans Englich                             :)
(: Date: 2007-11-22T11:31:20+01:00                       :)
(: Purpose: No function by name fn:format-time() exists in XQuery 1.0 (although one does in XSLT and XQuery 1.1). :)
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matches(format-time(current-time(), "[H01]:[m01]", (), (), ()), "..:..")